Ultra-light weight proppants — perspectives and experience of application in hydraulic fracturing

Background. The article discusses such a technological direction in hydraulic fracturing as working with ultra-light weight propping agents (proppants). These materials deserve special attention in the context of modern trends aimed at optimizing the hydraulic fracturing process, reducing its cost and increasing the efficiency of stimulation. Materials and methods. For a general acquaintance and understanding, the authors cite global trends, experience, practices on the use of ultra-light weight propping agents, and talk about the Russian experience of using such materials. The presented gradation of lightweight propping agents existing in the world and Russian practice makes it possible to get acquainted not only with existing solutions, but also to identify trends in the development of this direction. In the work, special emphasis placed on the conditions for the use of lightweight materials within the framework of traditional collectors, as well as schemes and directions for achieving the best economic effect. A special place in the article given to the inner experience of PJSC Gazprom Neft in estimation the applicability of ultra-light weight proppants presented by Russian manufacturers for conditions of Western Siberia fields. Results. The authors show the inner experience of the company, the results of field tests, methods and schemes of technology adaptation. The results of fieldwork, presented in the article, show the effectiveness of using a lightweight proppant, which expressed in reducing the unit costs. Conclusion. The analysis of the performed operations allows us to conclude that with the right approach in choosing the type of propping agent, its application conditions, geological properties of the object, assessment and adaptation methods, lightweight proppants have the chance to get out of the niche zone, fi nding wide application in the conditions of stimulation of traditional reservoirs.

Hydraulic fracturing (Frac), well, propping agent, lightweight proppant, research, pilot work, pressure, materials

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